Help with AI blade mount on Fiji cube 38

[MrCoralLover]

I have a Fiji cube 38 peninsula. What can I do to mount the 21” ai blade I bought? I bought the single arm mount but it’s a little flimsy. Doesn’t seem like it can hold it but it does. Are there any more options? Do I just buy another single arm hms mount lol? Help me please haha

 

[MrCoralLover]

Here’s a pic